Michigan Respiratory Virus Level — Flu, COVID-19, RSV Surveillance
Respiratory virus level tracks CDC and MDHHS surveillance of flu, COVID-19, and RSV activity in Michigan. Weekly trend data, hospitalizations, and wastewater levels. The reading is aggregated by Michigan Gateway from CDC NREVSS · MDHHS Communicable Disease · WastewaterScan, an authoritative public source, and refreshed automatically throughout the day.
For Michigan residents this indicator is one of several public-health signals that inform day-to-day decisions — from whether it's safe to be outdoors to whether a specific community needs additional attention. Combined with the other health indicators listed at the bottom of this page, it helps residents, journalists, and county officials build a fuller picture of current conditions in Michigan.
The current reading for this indicator updates live on the
Michigan Gateway dashboard.
The data feed below is fetched from CDC NREVSS · MDHHS Communicable Disease · WastewaterScan via the
public /api/publichealth endpoint.
CDC and MDHHS track three main respiratory viruses each week: influenza (flu), SARS-CoV-2 (COVID-19), and RSV. They use a combination of test-positivity rates, hospital admissions, emergency-room visits, and (newer) wastewater surveillance. Levels are reported as Minimal, Low, Moderate, High, or Very High. Peak respiratory season is December through February.
- Wash hands often. Cover coughs. Stay home when sick.
- Get a yearly flu shot — Michigan offers free vaccines at most pharmacies and county health departments.
- Update your COVID-19 vaccine annually if you're 65+, immunocompromised, or pregnant.
- Older adults and infants should ask about RSV vaccines (Arexvy, Abrysvo, Beyfortus for infants).